diff --git a/file.spec b/file.spec
index e1c5da6..070b1bb 100644
--- a/file.spec
+++ b/file.spec
@@ -131,7 +131,7 @@ to develop applications that require the magic "file" interface.
 %patch36 -p1 -b .clear
 %patch37 -p1 -b .getenv
 %patch39 -p1 -b .btrfs
-%patch40 -p1 -b .nc61
+%patch40 -p0 -b .nc61
 %patch -b .0
 test -s src/magic.h.in || cp -p src/magic.h src/magic.h.in
 rm -fv src/magic.h